Cast & creator
Michael C. Mahon
Best known for Law & Order, Law & Order, How I Met Your Mother
Also known as: Mike Mahon, Michael Mahon
24
film credits
21
television credits
45
1983–2026 · acting roles
6.5
average across scored titles
Signature credits
Known for
Across film & television
Filmography (45)
Showing 45 of 45 credits
Law & Order
Will Carter
1990Law & Order
Policeman #2
1990
How I Met Your Mother
Grumpy Man
2005
Married... with Children
Larry
1987
Diagnosis: Murder
Barry McCarthy
1993
Scandal
Billy Joe Lee
2012
ER
Joe
1994
Las Vegas
Ben Wilcox
2003Las Vegas
Greg Randalls
2003
The King of Queens
Mike
1998The King of Queens
Mr. Rogers
1998
The Orville
Altox
2017
Boston Legal
Officer James Gilmore
2004
Private Practice
Detective Smith
2007
Lois & Clark: The New Adventures of Superman
Brian
1993
Profiler
Adam Thompson
1996
Beyond Belief: Fact or Fiction
Mr. Baker (segment "Precious")
1997
Baywatch Nights
Clean Cut
1995
Mercy
Booking Sergeant
2026
Brimstone
Carl Traynor
1998
Gangster Squad
Citz Hall Reporter
2013
One West Waikiki
1994
Wall Street
Trader - Office
1987
Side Quest
Joshua
2025
Gridiron Gang
Field Coach
2006
Malcolm X
Prisoner
1992
Sleepaway Camp
Hal
1983
Get a Job
Braddock
2016
Fatal Affair
Driver
2020
The Flight Before Christmas
Santa Claus
2015
Shattered Mind
Jack
1996
Kidnapped: The Hannah Anderson Story
Reporter 1
2015
Dark Angel: The Ascent
Detective Greenberg
1994
Risk
Security Guard
1993
A Tale of Two Coreys
Teacher
2018
Oblivion 2: Backlash
Sidekick
1996
Christmas Twister
Doug
2012
Chameleons
Michael
1989
Josh Kirby... Time Warrior: Last Battle for the Universe
Donald Kirby (as Michael Mahon)
1996
Full Moon Rising: The Charles Band Story
Self
2026
Ominous
Rachel's Doctor
2015
High School Possession
Coach Burdette
2014
His Secret Past
Peterson
2016
Tomb of Terror
Detective Greenberg
2004
Zits
FBI Agent in Car
1988